MIC4575-3.3WU-TR is available for purchase but is not normally stocked.
Available Substitutes:

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Diodes Incorporated
In Stock: 0
Unit Price: $12.25713
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Texas Instruments
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Unit Price: $63.39000
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Texas Instruments
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Unit Price: $53.76000
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Texas Instruments
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Texas Instruments
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Datasheet
Buck, Buck-Boost Switching Regulator IC Positive Fixed 3.3V 1 Output 1.7A (Switch) TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
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MIC4575-3.3WU-TR

DigiKey Part Number
MIC4575-3.3WU-TR-ND - Tape & Reel (TR)
Manufacturer
Manufacturer Product Number
MIC4575-3.3WU-TR
Description
IC REG BCK BST 3.3V 1.7A TO263-5
Manufacturer Standard Lead Time
7 Weeks
Customer Reference
Detailed Description
Buck, Buck-Boost Switching Regulator IC Positive Fixed 3.3V 1 Output 1.7A (Switch) TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Datasheet
 Datasheet
EDA/CAD Models
MIC4575-3.3WU-TR Models
Product Attributes
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Category
Voltage - Input (Max)
24V
Mfr
Voltage - Output (Min/Fixed)
Packaging
Tape & Reel (TR)
Current - Output
Part Status
Active
Frequency - Switching
200kHz
Function
Step-Down, Step-Up/Step-Down
Synchronous Rectifier
No
Output Configuration
Positive
Operating Temperature
-40°C ~ 85°C (TA)
Topology
Mounting Type
Surface Mount
Output Type
Package / Case
Number of Outputs
1
Supplier Device Package
TO-263-5
Voltage - Input (Min)
4V
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (5)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
AP1501-33K5G-13Diodes Incorporated0AP1501-33K5G-13DI-ND$12.25713Similar
LM2591HVS-3.3/NOPBTexas Instruments0LM2591HVS-3.3/NOPB-ND$63.39000Similar
LM2591HVSX-3.3/NOPBTexas Instruments0LM2591HVSX-3.3/NOPBCT-ND$53.76000Similar
TL2575-33IKTTRTexas Instruments0296-21828-1-ND$21.05000Similar
TL2575HV-33IKTTRTexas Instruments7296-21838-1-ND$36.39000Similar
Available To Order
Check Lead Time
All prices are in HKD
Tape & Reel (TR)
QuantityUnit PriceExt Price
750$26.67840$20,008.80
Manufacturers Standard Package